CVE-2026-59222

creationtimestamp| type| source ---|---|--- 2026-07-24 18:35:03+00:00| published-proof-of-concept| https://github.com/open-webui/open-webui/security/advisories/GHSA-gh7p-78x6-jw6m...

Open WebUI: ReDoS in skill-mention regexes causes whole-instance DoS on default config

Summary Two regexes in backend/openwebui/utils/middleware.py that parse skill-mention tags backtrack in On² on input that contains . Both run synchronously, on the asyncio event loop, on every chat completion with no feature gate. Because the default deployment is a single uvicorn worker, one suc...

CVE-2026-47723 nebula-mesh: Web UI and API responses lack security headers (CSP, X-Frame-Options, HSTS, etc.)

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.1, none of the response paths in internal/web/ or internal/api/ set the standard browser-security headers. grep for Content-Security-Policy, X-Frame-Options, Strict-Transport-Security,...

GO-2026-5987 Insecure enrollment token TTL in nebula-mesh in github.com/forgekeep/nebula-mesh

The nebula-mesh Web UI host creation ignores the configured enrollment token TTL and instead mints 24-hour bearer enrollment tokens. This can lead to tokens remaining valid for longer than intended, increasing the window of opportunity for an attacker to use an intercepted token...

openSUSE 16 Security Update : beets (openSUSE-SU-2026:21383-1)

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:21383-1 advisory. Changes in beets: - CVE-2026-42052: Prior to version 2.10.0, the bundled web UI uses Underscore template interpolation mode for untrusted metadata field...

OPENSUSE-SU-2026:11325-1 agama-web-ui-23+0.f26ed5eab-49.1 on GA media

These are all security issues fixed in the agama-web-ui-23+0.f26ed5eab-49.1 package on the GA media of openSUSE Tumbleweed...

PT-2026-64050

These are all security issues fixed in the agama-web-ui-23+0.f26ed5eab-49.1 package on the GA media of openSUSE Tumbleweed...

Security update for beets (moderate)

openSUSE security update: security update for beets ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21383-1 Rating: moderate References: bsc1263988 Cross-References: CVE-2026-42052 Affected Products: openSUSE Leap 16.0...

PT-2026-83801

Name of the Vulnerable Software and Affected Versions Tenda AC1206 version 15.03.06.23 Description A flaw in the Web UI component allows remote attackers to bypass authentication. This occurs within the TendaTelnet function located in the /goform/telnet endpoint. Recommendations At the moment,...

pcs security update

0.12.2-3.el102.1 - Fixed CVE-2026-4800 by updating HA Cluster Management add-on to 0.1.24.3 Resolves: RHEL-164079 0.12.2-3 - Fixed CVE-2025-13465 by updating pcs-web-ui to 0.1.24.2 Resolves: RHEL-144191...

CVE-2026-61718: Improper Authorization

bunkerweb is an Open-source and next-generation Web Application Firewall WAF. From 1.6.2 until 1.6.12, the BunkerWeb web UI BiscuitMiddleware authorization bypass list included the /cache/ URL prefix, so routes in src/ui/app/routes/cache.py protected only by @loginrequired, including POST...

BIT-PROMETHEUS-2026-40179 Prometheus: Stored XSS via metric names and label values in web UI tooltips and metrics explorer

Prometheus is an open-source monitoring system and time series database. Versions 3.0 through 3.5.1 and 3.6.0 through 3.11.1 have stored cross-site scripting vulnerabilities in multiple components of the Prometheus web UI where metric names and label values are injected into innerHTML without...

PT-2026-60106

Name of the Vulnerable Software and Affected Versions nebula-mgmt versions 0.3.0 through 0.3.8 Description The Web UI host-creation path in nebula-mgmt ignores the server-wide enrollment token ttl security setting and per-network network config.enrollment token ttl overrides. While the API paths...

Open WebUI: SSRF Protection Bypass in Playwright Web Loader via HTTP Redirects

SummaryThe SafePlaywrightURLLoader implements a validateurl function to prevent SSRF attacks by checking the IP address of the user-provided URL. However, this validation is performed only on the initial URL.Since Playwright automatically follows HTTP redirects 301/302 by default, an attacker can...

Open WebUI: Low-privilege authenticated users can enumerate and stop global background tasks, causing system-wide chat disruption

SummaryAny authenticated user with low privileges can enumerate active background tasks across the system and stop tasks belonging to other users via the GET /api/tasks and POST /api/tasks/stop/taskid methods. This allows a casual user to disrupt system-wide chat usage by continuously canceling...

PYSEC-2026-2727 Open WebUI missing authorization check at the model update function - models from other users can be updated

Summary A user can modify another user's model even if its visibility is set to Private. The finding resulted from a penetration test for a customer. It is suspected that the root cause of the issue lies within the core of Open WebUI, which is why it is being reported as a security issue here...

PYSEC-2026-2726 Open WebUI has Broken Access Control for Completions API

Summary Any user X can continue the conversation of any other user Y, as long as the Chat ID of Y is known. User X does not even need to be an admin to do so. Details A user just needs to use the API endpoint: /api/chat/completions with their own API key generated in OWUI and the Chat ID of anoth...

PYSEC-2026-2744 Open WebUI has stored XSS in Excel file preview

Summary Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. Details The...

Open WebUI: Deactivated Channel Members Retain Full Access to Group/DM Channels

Deactivated Channel Members Retain Full Access to Group/DM Channels Affected ComponentChannel membership authorization check:- backend/openwebui/models/channels.py lines 663-673, isuserchannelmember- Used at 15 locations in backend/openwebui/routers/channels.py Affected VersionsCurrent main branc...

pyLoad has Stale Session Privilege After Role/Permission Change (Privilege Revocation Bypass)

SummarypyLoad caches role and permission in the session at login and continues to authorize requests using these cached values, even after an admin changes the user's role/permissions in the database.As a result, an already logged-in user can keep old revoked privileges until logout/session expir...